<template>
  <div class="goods">
    <div class="scroll-nav-wrapper">
      <cube-scroll-nav
        :side="true"
        :data="goods"
        :current="goods[0].name"
        :options="scrollOptions"
        v-if="goods.length"
      >
        <template v-slot:bar="props">
        <!-- <template slot="bar" slot-scope="props"> -->
          <cube-scroll-nav-bar
            direction="vertical"
            :current="props.current"
            :labels="props.labels"
            :txts="barTxtsCustom"
          >
            <template v-slot="props">
            <!-- <template slot-scope="props"> -->
              <div class="text">
                <support-ico
                  v-if="props.txt.type>=1"
                  :size=3
                  :type="props.txt.type"
                ></support-ico>
                <span>{{props.txt.name}}</span>
                <span class="num" v-if="props.txt.count>0"> 
                  <bubble :num="props.txt.count"></bubble>
                </span>
              </div>
            </template>
          </cube-scroll-nav-bar>
        </template>
        <cube-scroll-nav-panel
          v-for="(item, i) in goods"
          :key="i"
          :label="item.name"
          :title="item.name">
          <ul>
            <li 
              v-for="food in item.foods" 
              :key="food.name" 
              @click="selectedFoodInfo(food)"
              class="food-item"
            >
              <div class="icon">
                <img :src="food.icon" width="57" height="57">
              </div>
              <div class="content">
                <h2 class="name">{{ food.name }}</h2>
                <p class="desc">{{ food.description }}</p>
                <div class="extra">
                  <span class="count">月售{{ food.sellCount }}份</span><span>好评率{{ food.rating }}%</span>
                </div>
                <div class="price">
                  <span class="now">￥{{ food.price }}</span><span class="old" v-show="food.oldPrice">￥{{food.oldPrice }}</span>
                </div>
                <div class="cart-control-wrapper">
                  <cart-control 
                    ref="food"
                    :food="food"
                  ></cart-control>
                </div>
              </div>
            </li>
          </ul>
        </cube-scroll-nav-panel>
      </cube-scroll-nav>
    </div>
    <div class="shopping-cart-wrapper">
      <shop-cart 
        ref="shopCart"
        :delivery-price="data.seller.deliveryPrice"
        :min-price="data.seller.minPrice"
      ></shop-cart>
    </div>
  </div>
</template>
<script>
  import { getGoods } from 'api'
  import SupportIco from 'components/support-ico/support-ico'
  import ShopCart from 'components/shop-cart/shop-cart'
  import CartControl from 'components/cart-control/cart-control'
  import Bubble from 'components/bubble/bubble'
  // import Food from 'components/food/food'
  
  export default {
    name: 'goods',
    props: {
      data: {
        type: Object,
        default() {
          return {}
        }
      }
    },
    data() {
      return {
        goods: [],
        scrollOptions: {
          click: false,
          directionLockThreshold: 0
        }
      }
    },
    computed: {
      barTxtsCustom() {
        let barTxts = []
        this.goods.forEach(good => {
          const { name, type, foods } = good
          let count = 0
          foods.forEach(food => {
            if (this.$store.getters.getFoodCount[food.name]) {
              food.count = this.$store.getters.getFoodCount[food.name]
              count += food.count || 0
            }
          }) 
          barTxts.push({
            name,
            type,
            count
          })
        })
        return barTxts
      }
    },
    methods: {
      // fetch() {
      //   // 调用封装好的api，获取商品（goods）数据，该函数调用将在tab组件中的onChange中进行
      //   getGoods().then(result => {
      //     this.goods = result
      //     // console.log(this.goods[2].name)
      //     // this.$nextTick(() => {
      //     //   console.log(this.goods[2].name)
      //     // })
      //   })
      // },
      fetch() {
        if (!this.fetched) {
          this.fetched = true
          getGoods({
            id: this.data.seller.id
          }).then((goods) => {
            this.goods = goods
          })
        }
      },
      selectedFoodInfo(food) {
        this.foodDetail = food
        this._showFood()
      },
      _showFood() {
        this.foodComp = this.foodComp || this.$createFood({
          $props: {
            selectFood: 'foodDetail'
          }
        })
        this.foodComp.foodShow(this.foodDetail) // 调用food这个组件中的foodshow()方法，并将食物相关信息传递给food组件
      }      
    },
    components: {
      SupportIco,
      ShopCart,
      CartControl,
      Bubble
    }
  }
</script>
<style lang="stylus" scoped>
  @import "~common/stylus/mixin"
  @import "~common/stylus/variable"
  .goods
    position: relative
    height: 100%
    .scroll-nav-wrapper
      position: absolute
      top: 0
      left: 0
      width: 100%
      bottom: 48px
    >>> .cube-scroll-nav-bar
      width: 80px
      white-space: normal
      overflow: hidden      
    >>> .cube-scroll-nav-bar-item
      padding: 0 12px
      display: flex
      align-items: center
      text-align: left
      height: 54px
      font-size: $fontsize-small
      line-height: 14px
      background-color: $color-background-ssss
      // border-bottom: 1px solid $color-row-line 
      border-bottom-1px(12px, 56px, $color-row-line)
      .text
        flex: 1
        position: relative
      .num
        position: absolute
        right: -8px
        top: -10px
      .support-ico
        display: inline-block
        vertical-align: top
        margin-right: 4px

    >>> .cube-scroll-nav-bar-item_active
      border-none()
      background-color: $color-white
      font-weight: 700
      color: #000
      span 
        font-weight 700   
    >>> .cube-scroll-nav-panel-title
      padding-left: 14px
      height: 26px
      line-height: 26px
      border-left: 2px solid $color-col-line
      font-size: $fontsize-small
      color: $color-title-grey
      background: $color-background-ssss
    .food-item
      display flex
      margin 18px
      position: relative
      overflow hidden
      .icon
        flex 0 0 57px
        margin-right: 10px
        img
          height auto 
      .content
        flex 1
        .name
          margin: 2px 0 8px 0
          height: 14px
          line-height: 14px
          font-size: $fontsize-medium
          color: rgb(7, 17, 27)
        .desc, .extra
          line-height: 10px
          font-size: $fontsize-small-s
          color: rgb(147, 153, 159)
        .desc
          line-height: 12px
          margin-bottom: 8px
        .extra
          .count
            margin-right: 12px
        .price
          line-height: 24px
          .now
            font-weight: 700
            margin-right: 8px
            font-size: $fontsize-medium
            color: $color-red
          .old
            font-weight: 700
            text-decoration: line-through
            font-size: $fontsize-small-s
            color: $color-light-grey   
        .cart-control-wrapper
          position absolute
          bottom 0
          right 0
    .shopping-cart-wrapper
      position: absolute
      left: 0
      bottom: 0
      height: 48px
      width: 100%
      z-index: 50
</style>
